Comparison Certification and Error Analysis of Atmospheric Optical Parameters Measured by DTF Sun-Photometer

Abstract

Abstract:

DTF serial sun-photometers are used to measure aerosol optical thickness and precipitable water vapor in Hefei. They compare with other type instrument by experiment measurement. It is obvious that the daily variation tendency is basically consistent. The errors of computed parameters between DTF sun-photometer and other device are analyzed. The results indicate that the root-mean-square errors of measured aerosol optical thickness and precipitable water vapor are all less than 8%. Precipitable water vapor measured by sun-photometer comparing with microwave radiometer, the root-mean-square error is about 5%. Via comparison certification and error analysis, DTF sun-photometer which is used to sound aerosol optical thickness and precipitable water vapor has high reliability.

Key words: sun-photometer, aerosol optical thickness, precipitable water vapor, error analysis

CLC Number:

P427

LI Jian-Yu, QIE Li-Li, XU Wen-Qing, WEI He-Li. Comparison Certification and Error Analysis of Atmospheric Optical Parameters Measured by DTF Sun-Photometer[J]. Journal of Atmospheric and Environmental Optics, 2012, (2): 89-94.

References

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